Home / 98,983.92-136,622.88-56,567.40

Finding the Fourth Proportional to 98,983.92, 136,622.88 and 56,567.40

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Solution

The fourth proportional to 98,983.92, 136,622.88 and 56,567.40 is: 78,077.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,983.92 : 136,622.88 = 56,567.40 : x
  2. Step 2: Convert to fraction form
    98,983.92/136,622.88 = 56,567.40/x
  3. Step 3: Cross multiply
    98,983.92x = 136,622.88 × 56,567.40
  4. Step 4: Simplify right side
    98,983.92x = 7,728,401,102.11
  5. Step 5: Solve for x
    x = 7,728,401,102.11/98,983.92
  6. Step 6: Final answer
    x = 78,077.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.